The function f(x)=(2/5)x is shown on the coordinate plane. determine which expressions describe the end behaviors of the function. select each correct answer. as x increases without bound, the graph of f(x) decreases without bound. as x increases without bound, the graph of f(x) approaches y = 0. as x decreases without bound, the graph of f(x) increases without bound. as x decreases without bound, the graph of f(x) approaches y = 0.

1- is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis. 2- what do you think the product of a nonzero rational number and an irrational number is? is it rational or irrational? make use of variables, the closure property of integers, and possibly a proof by contradiction to prove your hypothesis. 3- why do we have to specify that the rational number must be nonzero when we determine what the product of a nonzero rational number and an irrational number is? if the rational number were 0, would it give us the same result we found in part b?